Litaba tsa indasteri
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Tataiso ea ho qetela ea ho Khetha Frame e Phethahetseng ea Optical
Ha ho tluoa tabeng ea likhalase, liforeimi tsa optical ha li na karolo ea bohlokoa feela ho ntlafatsa pono, empa hape le ho totobatsa botho ba hau ba feshene. Ka mefuta e mengata, libopeho le lisebelisoa tse fumanehang, ho khetha foreimi e phethahetseng ea optical e ka ba mosebetsi o boima. Hore na o batla para e ncha ...Bala haholoanyane -
Likhalase tsa letsatsi ke sesebelisoa sa bohlokoa
Likhalase tsa letsatsi ke sesebelisoa sa bohlokoa ho batho ba bangata lefatšeng ka bophara. Ho sa tsotellehe hore na u batla tšireletso mahlaseling a kotsi a letsatsi kapa u batla ho ntlafatsa tsela eo u aparang ka eona fesheneng, likhalase tsa letsatsi ke sesebelisoa se ka fanang ka tsona ka bobeli. Sehloohong sena, re tla hlahloba likarolo tse fapaneng tsa letsatsi ...Bala haholoanyane -
Myopia e hloka tsebo e hlokahalang ho fumana mokhoa oa ho hloekisa likhalase ntle le ho senya lense
Ka keketseho ea lihlahisoa tsa digital, mahlo a batho a tlas'a khatello e eketsehileng. Ho sa tsotellehe hore na batho ba hōlileng, batho ba lilemong tse bohareng kapa bana ke bafe, kaofela ba roala likhalase ho thabela ho hlaka ho tlisoang ke likhalase, empa re roala likhalase nako e telele. Ee, lilense tsa likhalase tsa hau li tla khabisoa ...Bala haholoanyane -
Mokhoa oa ho lokisa foreimi ea likhalase tse khopameng, likhalase tsa Mayya li tla u ruta
Joang ho lokisa foreime ea likhalase tse khopameng? Haeba seipone se holim'a likhalase ha se bataletse, se tla etsa hore lehlakore le leng le be haufi le leihlo 'me lehlakoreng le leng le be hōle. Ha e le hantle, ha feela likhalase li ntse li kheloha, sebaka sa optical center sa lense se ke ke sa lumellana le seithuti, se tla ...Bala haholoanyane -
Tsebo ea motheo ea likhalase tsa ho bala tseo u lokelang ho li tseba
Likhalase tsa ho bala ke mofuta oa likhalase tsa optical, tse fanang ka likhalase tsa myopia tse atisang ho sebelisoa ke batho ba nang le presbyopia, tseo e leng tsa lense ea convex. Likhalase tsa ho bala li sebelisoa ho tlatsa mahlo a batho ba lilemong tse bohareng le ba hōlileng. Joalo ka likhalase tsa myopia, li na le litekanyetso tse ngata tsa elektroniki tsa optical index ...Bala haholoanyane -
Na ho loketse hore batho ba hōlileng ba apare lifilimi tse tsoelang pele?
Pele ho tsohle, a re utloisiseng hore ke lense e tsoelang pele, 'me lense ea eona e ka hlalosoa e le ntho e' ngoe le e 'ngoe. Haeba e arotsoe ho tloha moo ho nahanoang teng, lilense li ka aroloa ka lilense tse le 'ngoe, lilense tsa bifocal le lilense tse ngata. Lilense tse tsoelang pele tsa multifocal, hape li tseba ...Bala haholoanyane -
Na u hloka ho roala likhalase tsa letsatsi mariha?
Likhalase tsa letsatsi esale e le sebetsa se tlamehang ho ba le feshene ea lehlabula le sebopeho sa concave kelellong ea motho e mong le e mong. 'Me boholo ba nako re nahana hore likhalase tsa letsatsi li lokela ho apesoa feela lehlabula. Empa re tlameha ho tseba hore mosebetsi o ka sehloohong oa likhalase tsa letsatsi ke ho thibela tšenyo ea mahlaseli a ultraviolet, le ultrav ...Bala haholoanyane -
Na ho teba ha lense ea khalase ea letsatsi ho etsa hore tšireletso ea UV e be betere?
Hore na likhalase tsa letsatsi li ka itšireletsa khahlanong le mahlaseli a UV ha ho amane le moriti oa lense, empa ho khethoa ke maemo a UV a lense. Mmala oa lense o lefifi haholo o tla ama ponahalo, 'me mahlo a senyeha habonolo ka ho sokola ho bona. Ho feta moo, libaka tse lefifi li ka holisa morutoana, ...Bala haholoanyane -
Tebello ea nts'etsopele ea indasteri ea likhalase
Ka ntlafatso ea maemo a bophelo a batho le ntlafatso ea litlhoko tsa tlhokomelo ea mahlo, tlhokahalo ea batho ea ho khabisa likhalase le tšireletso ea mahlo e ntse e eketseha, 'me tlhokahalo ea ho reka lihlahisoa tse sa tšoaneng tsa likhalase e ntse e hōla. Tlhokahalo ea lefats'e ea tokiso ea mahlo ke ...Bala haholoanyane -
Ke hobane'ng ha lilense tse thibelang khanya e putsoa li fetoha mosehla?
Lilense tsa batho ba bang li shebahala li le putsoa, tse ling li pherese, tse ling li le tala. 'Me likhalase tse thibelang leseli le leputsoa tse buelloang ho' na li mosehla. Joale ke hobane'ng ha lilense tse thibelang khanya e putsoa li fetoha mosehla? Ha re bua ka pono, leseli le lesoeu le na le mebala e supileng ea leseli, eo kaofela e leng ea bohlokoa haholo. Lebone le leputsoa ...Bala haholoanyane -
Mekhoa e leshome le metso e 'meli e sebetsang ea tšireletso ea mahlo
Ka ho potlakisa ha morethetho oa bophelo ba batho le ho ata ha li-skrini tse kang lik'homphieutha le liselefouno, tšireletso ea mahlo e ntse e e-ba ea bohlokoa le ho feta. Hona joale, lihlopha tsohle tsa lilemo li na le mathata a mahlo a mangata kapa a fokolang. Mahlo a omileng, ho taboha, myopia, glaucoma le matšoao a mang a mahlo a ...Bala haholoanyane -
Mokhoa oa ho khothaletsa thekiso ea likhalase tsa mahlo tse kopaneng?
01 Lihlahisoa tse amanang: Ha moreki a khetha sehlahisoa se itseng, re ka khothaletsa thekiso ka ho bapisa liaparo le lisebelisoa tse amanang. Se tlisang bareki ke phello ea kelello ea icing holim'a kaka. Bareki le bona ba tla thabela ho e amohela. Mohlala, lumella bareki ba apereng...Bala haholoanyane